Stacked power supply system

Abstract

A stacked power supply system applied for an electronic device is provided. The stacked power supply system has an adapter and multiple battery modules. The adapter has a power plug, a power supply connector and a battery connector. The adapter is connected to an external AC power via the power plug, and converts the alternating current to the direct current, so as to supply power to the electronic device via the power supply connector. The battery modules have a battery set, a first connector and a second connector. The first connector of one of the battery modules is electrically connected to the battery connector of the adapter, the second connector of other neighboring battery modules is adapted to the first connectors of the neighboring battery modules, so as to form a stacked battery modules structure.

What is claimed is: 
     
         1 . A stacked power supply system applied for an electronic device, comprising:
 an adapter, having a power plug, a power supply connector and a battery connector, wherein the adapter is adapted to be connected to an external AC power via the power plug, so as to convert an alternative current to a direct current, and the adapter supplies power to the electronic device via the power plug; and   a plurality of battery modules, wherein each one of the battery modules has a battery set, a first connector and a second connector, the first connector of one of the battery modules is electrically connected to the battery connector of the adapter, and the second connector of the other neighboring battery modules is adapted to be connected to the first connector of the neighboring battery modules, so as to form a stacked structure of the battery modules.   
     
     
         2 . The stacked power supply system of  claim 1 , wherein the battery connector of the adapter is a male connector or a female connector. 
     
     
         3 . The stacked power supply system of  claim 1 , wherein the battery set has one or more batteries and wherein the batteries are connected in parallel when there is more than one battery in the battery set. 
     
     
         4 . The stacked power supply system of  claim 2 , wherein when the battery connector of the adapter is the male connector, the first connector of the battery modules is corresponded to a female connector, and the second connector of the battery modules is corresponded to a male connector. 
     
     
         5 . The stacked power supply system of  claim 2 , wherein when the battery connector of the adapter is a female connector, the first connector of the battery modules is corresponded to a male connector, and the second connector of the battery modules is corresponded to a female connector. 
     
     
         6 . The stacked power supply system of  claim 1 , wherein the battery modules have a case, wherein the case has a first side and a second side, the first side is parallel to the second side, the first side is the side facing to the battery connector of the adapter, the second side is the opposite side being away from the battery connector of the adapter, and the first connector is disposed on the first side, the second connector is disposed on the second side. 
     
     
         7 . The stacked power supply system of  claim 1 , wherein the adapter has a contact surface, and wherein the battery connector is disposed on the contact surface. 
     
     
         8 . The stacked power supply system of  claim 6 , wherein the adapter and the first side and the second side of the battery modules are closely fitted to the first connector and the second connector of the battery modules via the battery connector of the adapter, so as to form the stacked structure of the battery modules. 
     
     
         9 . The stacked power supply system of  claim 6 , wherein the case further comprises a battery level indicator or an audio alarm.